One employee with Huntsville Fire and Rescue on scene said he did not believe anyone was home at the time of the fire.

Onlookers were recording video and uploading to social media from the scene, many in disbelief at the size and strength of the stubborn blaze.

The fire appeared to be almost out at one point, sometime just after 10 p.m., but a first-floor apartment began to catch fire again quickly and within seconds, those flames spread throughout the entire second floor for a second time.